I have tried these plugins and they open are working in most respects.
- Weather_routing is now reading and writing files better.
- Watchdog functions are working.
- Weatherfax is more seemless, and operation is more fluid and useful,the sound files need to be tested and use with a soundcard and a SSB to recieve on schedule needs to be tested. (If someone can do that and advise, it would be wonderful as I do not have an SSB.)

Sean has updated these plugins. Please uninstall previous versions using the plugin uninstall exe located in the Opencpn directory and then install and test.
I have installed each plugin and have opened it in Opencpn 3.3.2107 but have not fully tested it. Thank you. You will find the updates in the appropriate Opencpn version folder here:

Weather_routing
Bump version, add readme, add polar files and improve polar file loading.
weather_routing_pi-1.2-ov3.3.2107-win32.exe
--Note that weather_routing works for "New" configurations. Old configurations seen to fail and crash Opencpn. I have not figured out what is causing this.

Rtlsdr
Improve reported messages and detect helper programs, minor version set to 12,
for AISvhf and more on tv tuner usb dongle
rtlsdr_pi-0.12-ov-3.3.2107-win32.exe

Sean thanks for the website link, but there is a Link problem:
Celestial_Navigation plugin link under "Information"The above information was edited from Erik De Manfile:///C:/Program%20Files%20%28x86%29/OpenCPN%203.3.2107/plugins/celestial_navigation_pi/data/www.erikdeman.de
Not foundTry Erik's Nautical Web Pages and Erik's Nautical Web Pages
This is a good website!

Sean has recently updated these plugins. Please uninstall previous versions using the plugin uninstall exe located in the Opencpn directory and then install and test.
I have installed each plugin and have opened it in Opencpn 3.3.2118 and run them, but not fully tested. Thank you.

I have not tested these files yet. They all compiled with no warnings or errors and they have had minimal changes. This thread should now probably be titled something else. Will try to change it
to something like "Opencpn Beta Files & Plugins for Windows"
meaning if the Opencpn downloads page is more current , use that!
OpenCPN Beta File Thingie rguser rgpass

This is now using https and the user has been restricted to upload download. Changed the folder on the website too.

Regarding weatherfax_pi I can build it standalone from command line ok in Linux. But if I clone it into OpenCPN/plugins and issue make from OpenCPN/build it fails when it gets to this folder opencpn/plugins/weatherfax_pi. This is the output: